Design And Study On Killing Potato Vine Machine With Flail

In recent years,China’s central Gansu potato acreage increased year by year,and the majorityof the rural labor force transfer to the city, labor shortages potato farmers growing demand formechanized harvesting.Mechanized harvesting potato farmers can greatly reduce laborintensity,reduce production costs and improve the efficiency of the potato harvest. Potato vinebefore harvesting machine using science to kill kill seedlings is an important prerequisite for theprotection of mechanized harvesting. By killing seedlings before harvest,can reduce the load ofthe harvesting machine,the traveling speed,failure rate,seedling potato harvester splitter willgreatly reduce the load of the internal potato seedlings will be significantly improvedseparation.Therefore,the development of a capable and effective smashed potato vinestems,making harvesting process does not appear to obstruct blocking, does not appear vinewinding machines rod issues such as seeding machine killing has important practicalsignificance.Therefore,the reference literature data on potato vine killing machine,according to the actualsituation of the province’s potato planting and harvesting patterns, and through the on-siteobservation potato harvest vine twining stems technical problems machine lever,and developed aflail style potato vine killing machine,the machine is suitable for dry farming area in Gansupotato ridge pattern.This paper mainly studied from the following aspects:(1) The system analyzes the development situation at home and abroad potato vine killingmachine,according to the main function of potato vine killing machine and agronomicrequirements,conducted flail potato vine killing machine overall design,made to kill seedingmachine work2rows OK, working width of1000mm, leak hit rate≤1%, with a rate of≤0.6%potato and other indicators of overall performance.(2) Flail potato vine killing machine design and analysis of main components.Determine thestructural parameters of gear,thrown knives and axes,walking round, shell and other parts of thebody,calculated the transmission gear ratio,designed the gearbox bevel gears,thrown knives andaxes,V belts and pulleys and The main components tensioning devices.(3)The establishment of a potato vine killing machine flail model for kinematic analysistheory,to flail shape, number, arrangement and movement of theoretical analysis to determine itsstructure and main parameters,the number is20flail put,double L-shaped blades,staggered arrangement of the balance of the balance arbor analyzed;estimate the flail shaft speedshould be greater than or equal1699r/min, and thrown away the knife cut into the rationality ofthe design was validated.(4) The use of Pro/Engineer5.0thrown knives and axes of motion simulation, kinematicand dynamic analysis of the use of sport thrown knives and axes were analyzed and tested flailshaft structure design is reasonable;use finite element analysis software ANSYS flail strengthcheck.(5) Flail cutting potato stalks were tested to determine the optimum combination ofparameters flail is:flail speed34m/s,flail blade angle of20°,stubble height100mm.